Crack growth in Mil Annealed Ti-6Al-4V structural components

S. Pitt; R. Jones; B Farahmand

Crack growth in Mil Annealed Ti-6Al-4V structural components

S. Pitt, R. Jones, B Farahmand

Mechanical & Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

Abstract

There is an increasing use of titanium in primary aircraft structures with bulkheads in the F-22, Super Hornet, and the Joint Strike Fighter being made of titanium. Until recently it was thought that cracking in titanium and high strength aerospace steels was relatively well understood. However, this paper analyses a series of NASA, and Boeing studies into cracking in Ti-6AL-4V to reveal a weak R ratio effect with little closure in Region II. We also see that, in each case, the data conforms to the Generalised Frost-Dugdale crack growth law. This study also implies that the mechanisms driving cracking in high strength aerospace steels and Mil Annealed Ti-6Al-4V are similar.

Original language	English
Title of host publication	12th International Congress on Fracture 2009, ICF-12
Pages	3972-3978
Number of pages	7
Volume	5
Publication status	Published - 2009
Event	International Congress on Fracture 2009 - Ottawa, Canada Duration: 12 Jul 2009 → 17 Jul 2009 Conference number: 12th

Conference

Conference	International Congress on Fracture 2009
Abbreviated title	ICF 2009
Country/Territory	Canada
City	Ottawa
Period	12/07/09 → 17/07/09

Cite this

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title = "Crack growth in Mil Annealed Ti-6Al-4V structural components",

abstract = "There is an increasing use of titanium in primary aircraft structures with bulkheads in the F-22, Super Hornet, and the Joint Strike Fighter being made of titanium. Until recently it was thought that cracking in titanium and high strength aerospace steels was relatively well understood. However, this paper analyses a series of NASA, and Boeing studies into cracking in Ti-6AL-4V to reveal a weak R ratio effect with little closure in Region II. We also see that, in each case, the data conforms to the Generalised Frost-Dugdale crack growth law. This study also implies that the mechanisms driving cracking in high strength aerospace steels and Mil Annealed Ti-6Al-4V are similar.",

author = "S. Pitt and R. Jones and B Farahmand",

year = "2009",

language = "English",

isbn = "9781617382277",

volume = "5",

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AU - Pitt, S.

AU - Jones, R.

AU - Farahmand, B

N1 - Conference code: 12th

PY - 2009

Y1 - 2009

N2 - There is an increasing use of titanium in primary aircraft structures with bulkheads in the F-22, Super Hornet, and the Joint Strike Fighter being made of titanium. Until recently it was thought that cracking in titanium and high strength aerospace steels was relatively well understood. However, this paper analyses a series of NASA, and Boeing studies into cracking in Ti-6AL-4V to reveal a weak R ratio effect with little closure in Region II. We also see that, in each case, the data conforms to the Generalised Frost-Dugdale crack growth law. This study also implies that the mechanisms driving cracking in high strength aerospace steels and Mil Annealed Ti-6Al-4V are similar.

AB - There is an increasing use of titanium in primary aircraft structures with bulkheads in the F-22, Super Hornet, and the Joint Strike Fighter being made of titanium. Until recently it was thought that cracking in titanium and high strength aerospace steels was relatively well understood. However, this paper analyses a series of NASA, and Boeing studies into cracking in Ti-6AL-4V to reveal a weak R ratio effect with little closure in Region II. We also see that, in each case, the data conforms to the Generalised Frost-Dugdale crack growth law. This study also implies that the mechanisms driving cracking in high strength aerospace steels and Mil Annealed Ti-6Al-4V are similar.

UR - http://www.scopus.com/inward/record.url?scp=84869791905&partnerID=8YFLogxK

M3 - Conference Paper

AN - SCOPUS:84869791905

SN - 9781617382277

VL - 5

SP - 3972

EP - 3978

BT - 12th International Congress on Fracture 2009, ICF-12

T2 - International Congress on Fracture 2009

Y2 - 12 July 2009 through 17 July 2009

ER -

Crack growth in Mil Annealed Ti-6Al-4V structural components

Abstract

Conference

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